Have you ever been in a hurry to get to your work but are left frustrated when you can’t find your keys. Thanks to Hone for iPhone 4S, you can keep track of your keys more conveniently. This is a Bluetooth add-on that audibly vibrates when triggered. It runs for 6 months on the included battery and has a 150+ foot range. All you have to do is attach this to your keychain and use the companion app to trigger it.
Hone has a built-in proximity sensor so you know when you are getting closer. A pretty cool product for those of you who lose your keys all the time.